Any one had experience with heart palpitations and just general adrenaline problems with b vitamins, riboflavin and thiamine specifically? I just can't take them anymore which sucks because I had great benefit with them when I started using them, I can take taurine and niacinamide without any reaction, but I've been having really worrying symptoms with thiamine and riboflavin like shortness of breath, heart palpitations and a general feeling of having to get up (basically panicking) and move.
I've experimented with taking lower doses of both and never did take any crazy doses, the most of riboflavin in one day was 600mg (usually take less than 150mg) most of thiamine was around 600mg also. These episodes I was only taking maybe 150mg of both with 50mg niacinamide. Am I really taking too much? I've seen countless posts on twitter and rpf of people taking multiple grams of all of these substances and more so I've always felt pretty safe taking these amounts.
Anybody experienced similar problems or have any advice to over come this?